I'm building in a gnome 3.2.[01] environment.  The build dies with:

  CC     librotation_la-totem-rotation-plugin.lo
totem-rotation-plugin.c: In function 'rotation_plugin_store_state_finish':
totem-rotation-plugin.c:615:32: warning: variable '_data_' set but not used [-Wunused-but-set-variable]
totem-rotation-plugin.c: In function 'rotation_plugin_try_restore_state':
totem-rotation-plugin.c:758:14: warning: assignment discards 'const' qualifier from pointer target type [enabled by default]
totem-rotation-plugin.c: In function 'rotation_plugin_try_restore_state_finish':
totem-rotation-plugin.c:764:37: warning: variable '_data_' set but not used [-Wunused-but-set-variable]
totem-rotation-plugin.c: In function 'rotation_plugin_peas_activatable_interface_init':
totem-rotation-plugin.c:911:7: error: 'PeasActivatableInterface' has no member named 'get_object'
totem-rotation-plugin.c:912:7: error: 'PeasActivatableInterface' has no member named 'set_object'
totem-rotation-plugin.c: At top level:
totem-rotation-plugin.c:183:13: warning: 'peas_activatable_set_object' used but never defined [enabled by default]
totem-rotation-plugin.c:763:13: warning: 'rotation_plugin_try_restore_state_finish' defined but not used [-Wunused-function]
totem-rotation-plugin.c:614:13: warning: 'rotation_plugin_store_state_finish' defined but not used [-Wunused-function]
make[6]: *** [librotation_la-totem-rotation-plugin.lo] Error 1